1. Support AUX, Bluetooth, USB, TF card playback.

2. Hand-held lanyard, convenient for outdoor use.

3. High-definition Nicam, good sound quality.

Brand: ZEALOT

Model: S51

Battery capacity: 1500mAh lithium battery

Bluetooth version: 5.0

Speaker: 5W*2

Transmission distance: about 10m

Frequency response: 100Hz-20KHz

Signal to noise ratio: ≥90dB

Working voltage: 3.7V

Distortion: <1%

Charging voltage: DC5V

Charging port: Micro USB

Talk time: about 3h

Music playback: about 8h

Standby time: ≥30 days

Charging time: about 2.5h

TWS: Turn on both speakers at the same time, then long press the "M" key